qcacmn: Add host timestamp to cfr header

Include a UTC timestamp when constructing the CFR header,
represented as a 64-bit nanoseconds value.
This will allow for better correlation with ground truth
data.

CRs-Fixed: 3156826
Change-Id: Ie77d5e433346f21c3876930a2b8cbfa528affb20

umac/cfr/dispatcher/inc/wlan_cfr_utils_api.h

@@ -228,6 +228,7 @@ struct cfr_header_cmn {
 	u_int8_t    chip_type;
 	u_int8_t    pltform_type;
 	u_int32_t   cfr_metadata_len;
+	u_int64_t   host_real_ts;
 } __attribute__ ((__packed__));
 
 struct csi_cfr_header {